An Innovative Technique for Rapid Screening of Cigarette Filter Adsorbents

Abstract

Cigarette smoke is an aerosol containing a large number of chemicals, including toxicants. In recent years, a number of cigarette filter additives have been evaluated for their toxicant filtration properties. Screening is a useful tool to accelerate the testing and development of new filter additives and filtration mechanisms. The evaluation of a filter material screening technique based on the so-called InfraSORP technology is described. By comparing InfraSORP measurements with reference cigarette smoke experiments of potential cigarette filter materials like activated carbons and ion-exchange resin, an excellent correlation is demonstrated. This technique allows for a rapid screening of potential filter materials prior to testing any final candidates in cigarettes.

Measurement of airborne emissions from extinguished cigarettes:

“…Naphthalene was included because it is on the HPHC list. Triacetin is not on the HPHC list or the top 30 list, but it is a commonly used plasticizer in filters and can account for about 6 % to 10 % of the filter weight (Branton et al 2017). Therefore, triacetin could be a good indicator for long term emissions.…”

“…Even if burning releases a large amount of nicotine, there is still likely a significant mass remaining in a butt. Triacetin is normally the major plasticizer in the filter, which can account for about 6 % to 10 % of the filter weight (8 mg to 14 mg of triacetin per filter) (Branton et al 2017). A total of 48 µg of triacetin per cigarette was released during the 24-h large chamber study, or roughly 0.5 % of the mass present before burning based on the results of Branton et al (2017).…”

Adsorption and Detection of Hazardous Trace Gases by Metal–Organic Frameworks

“…Sandra et al investigated the H 2 S performance of a MOF composite by breakthrough experiments and successfully reproduce the results with optical calorimetric tests. Hence it is apparent that optical calorimetry is a rapid, simple, and cost‐effective supplement to commonly used breakthrough and physisorption methods for a wide variety of samples and adsorptives …”